Washing-machine.



W. TRINKS.

WASHING MACHINE.

' APPLICATION FILED SEPT.28, 1915.

PatentedJun 20, 1916.

INVENTOR.

Z ATTORNEY WITNESSI or tion.

'WIIILIRALI) TRINKs, 0E PITTSBURGH, PENNSYLVANIA, AssIe'NoR, BY MEsNE AssIeN- ivrEN'rs; To NATIONAL BRUSH WASHING MAoHINE COMPANY, OF PITTSBURGH,

PENNSYLVANIA, A ooRroRATIoN OF DELAWARE.

WASHING-MACHINE.

Specification of Letters Patent.

Patented June 20,1916.

Application filed September 28, 1915. Serial No. 53,004.

To all whom it may concern:

Be it known that I, WILLIBALD TRINKs, a citizen of the United States, and residing in the city of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented or discovered new and useful-Improvements in Washing-Machines, of which the following is a specification.

My invention consists in certain new and useful improvements in washing machines wherein the washing operation is accomplished by the coaction of a pair of rotary members between which the clothes to be washed are passed.

My invention particularly relates to the method of mounting one of said rotary members in the machine, whereby the same is resiliently pressed against the other member in such a manner that the first member is capable of being tilted out of parallelismwith the second member to permit clothes of uneven thickness across their width to pass between the two members under umform pressure.

My I improved mounting is particularly adapted for use in connection with the back-- ing'roll of a rotary brush washing machine,

and I 'tion in that connection.

Novel features of construction and arrangement of parts will appear from the following description.-

In the accompanying drawings, Figure 1 is a partial plan view of the frame of a rotary brush washing machine embodying my invention with the brush omitted, the backing roll being shown partially in section and one of its end bearings-being also in section; Fig. 2 is a broken side elevation showing said washing machine; Fig. 3 is an elevation showing the inner face of one of the suspension links of the backing roll; Fig. 4 is a plan view of one of the journal block elements; Fig. 5 is a side elevation of 4,5,. the wooden plug member, and Fig. 6 is a perspective of the wooden socket member. The following is a detailed descriptlon of the drawings. A represents the side plates.

bove the brush B. The

have therefore illustratedmy invenbolt 2, to the outer face.

lower end of each of said links 1 is pivotally connected to the outer end of a rod 3 which extends through a horizontal hole in the vertlcal flange 4 on the outer face of the plate A. The inner end of rod 3 is threaded and provided with a washer 5 and a nut 6. 7 1s a helical spring mounted on the rod 3 between the flange Land the washer 5. In-

" termediate of their ends, said links are provided on their inner faces with open front rectangular boxes '8 in which are seated the two part journal blocks 9, preferably of wood and hollowed out so as to form, when assembled together, a ball socket, as shown in Fig. 1.

C is the shaped projection 10 v at each end which seats in the ball socket formed by the blocks 9 when the machine is assembled. Thus the box '8 and bearing block 9 at each end of the backing roll form a sliding pair, while the .75

hearing block 9 and the ball projection 10 form arotating pair, thereby providing for free movement of the backing-roll.

It is evident that thebackingroll will ro-T tate freely in its mounting, and will be re- 80.

siliently held against the brush by the actlon of the springs 7, whose tension may be adjusted by means of the nuts 6. It is also evident that, insomuch as said links are entirely independent of each other, either end of the backing roll maybe tilted awayfrom the brush without drawing the other end of the backing roll with it, thus enabling clothes of uneven thickness across their width to pass between the-brush and the roll under uniform pressure throughout their width.

When one end of the backing roll is tilted or moved farther from the brush than the other end of'the backing roll, the distance between the two boxes 8 is greater than when the two links are parallel, and, therefore, unless the blocks 9 are free-to slide in their boxes, the ball projections 10 on" the ends of the roll would bind in their bear- 10o ings, preventing the free rotation of the roll and the independent movement of the links.

The structureof the backing roll itself is as follows: 11 is a cylinder of a suitable hard, brass. reinforcement composed of interlocking members 12 and 13.

backing roll, having an axial ball -10 non-corrosive metal, such as drawn Said cylinder is braced by internal 12 is a cylindrical socket member provided with a pair .of diametrically opposed slots a in its wall extending from a point adjacent to one end of the socket'to the other end of the same, while 90 degrees from the slots at are a pair of similar slots 6 which extend from a point adjacent to the last named end of said socket to the first named end of the same. The length of socket 12 inforcing the latter.

is preferably somewhat less than that of the cylinder 11. I

13 is a wooden plug of circularcross' section and preferably slightly tapered toward one end.

The socket 12 is first inserted into the cylinder 11 wherein it fits somewhat loosely, and is properly centered and held stationary while the plug 13 is driven into its interior, expanding the socket into snug contact with the cylinder 11, thereby supporting and re- The ends 14 of the roll '0 are turned or otherwise formed of .brass or other non-corrosive metal and are provided with the integral balls 10 as above described. Said ends are also provided with annular perimetal surfaces 15 which fit snugly into the open ends of the cylinder 11 and are sweated in place with soft solder. A radial flange 16 on the ends 14: bears against the ends of the cylinder 11.

It is evident from the foregoing that the roll C is water-tight, preventing the entrance of moisture into the interior of the roll, and the structure of said roll is such that it will not become dented or bent from use.

What I desire to claim is In a washing machine, the combination 

